1. Center for Human Nutrition and Atkins Center of Excellence in Obesity Medicine, Washington University School of Medicine, St. Louis, Missouri;
2. Center for Clinical and Basic Research, Department of Medical Sciences, IRCCS San Raffaele, Rome, Italy;
3. Texas Biomedical Research Institute, San Antonio, Texas;
4. National Research Council Institute of Clinical Physiology, CNR, Pisa, Italy;
5. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas; and
6. CEINGE-Advanced Biotechnologies,
7. European School of Molecular Medicine, Naples, Italy